False Promise from FNB

I was informed that I would receive 40% back of my first installment in ebucks from FNB Homeloans. My first installment was December and I didn’t receive any ebucks as promised. I was then told in Feb that there was a mistake and my eBucks will be paid on the 8th March. And there is nothing loaded and no one knows why. and I have been calling fnb with no real assistance. I am actually very annoyed with this experience and treatment I am receiving from Fnb. Please kindly load my ebucks before close of business today with additional 10% for interest caused by your delay.